Two wire sensor is the ECTS

 

Went ahead and replaced the ECTS. No change. Found a PCM troubleshooting guide (by pin) and will troubleshoot the PCM. Thanks for all the advise!

 

Did you replace the ETCS connector and did you buy the parts from your local GM dealer. If you bought the the parts from NapaCheckerAdvanceZone you got what you paid for.


NEVER replace the ETCS without replacing the pigtail connector.

 

I did in fact buy the aftermarket part. I will compare it to the resistance chart to see if it is working correctly. Thanks.